When was tea first grown? The cultivation of tea is believed to have begun in the province of Szechwan in China in around the year 350. From there its …
When was the FBI set up? FBI stands for the Federal Bureau of Investigation and was founded in 1908 within the Unites States department of Justice. Its headquarters are …
When was the hamburger invented? As the name suggests, Hamburg in Germany gave its name to this cake of minced meat cooked on a grill or a hot plate. …
When were tinned foods invented? In 1810, Nicholas Appert of France, invented a way of sterilising food in tin cans to keep for a long time. This invention relieved …
When were traffic lights invented? The purpose of traffic lights is to control the flow of traffic, determine the right way of intersections and give greater safety to drivers. …
When was the parachute invented? A parachute is a device which is designed to reduce the speed of fall. Leonardo da Vinci was the first person who designed the …
When was the Red Cross founded? The Red Cross was founded by a Swissman named Jean Henri Dunant, after he had witnessed the Battle of Solferina in 1859. The …
When are caused? Our skin is in two layers. There is the outer layer and the inner one which carries nerves and blood vessels. Beneath the skin is a …
